tyrannosaurus

British

/ tɪˌrænəˈsɔːrəs, tɪˈrænəˌsɔː /

noun

any large carnivorous bipedal dinosaur of the genus Tyrannosaurus, common in North America in upper Jurassic and Cretaceous times: suborder Theropoda (theropods)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of tyrannosaurus

C19: from New Latin, from Greek turannos _tyrant + sauros lizard

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

One of the world's most complete Tyrannosaurus rex skeletons, nicknamed "Gus," was showcased Wednesday at Sotheby's auction house in New York ahead of its sale later this month.

From Barron's • Jul. 1, 2026

Edmontosaurus was a large duck-billed plant eater that lived alongside Tyrannosaurus rex near the end of the Cretaceous Period.

From Science Daily • May 14, 2026

One of the most famous discoveries came in 2005, when paleontologist Mary Schweitzer and colleagues reported soft tissue structures inside a Tyrannosaurus rex fossil.

From Science Daily • May 14, 2026

My research team and I identified preserved blood vessels in a Tyrannosaurus rex fossil, and our findings were recently published in Scientific Reports.

From Science Daily • Apr. 26, 2026

Then a Tyrannosaurus rex roared and stomped through the leafy jungle, causing a leaping herd of Velociraptors to screech and flee.

From "Mr. Lemoncello's Library Olympics" by Chris Grabenstein

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023